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Optical switch and matrix optical switch

  • US 20060257073A1
  • Filed: 04/05/2006
  • Published: 11/16/2006
  • Est. Priority Date: 08/20/2004
  • Status: Active Grant
First Claim
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1. An optical switch comprising:

  • a substrate which has at least conductivity;

    an optical waveguide layer which is formed on the substrate, the optical waveguide layer including an incident-side channel waveguide on which a light signal is incident and a plurality of outgoing-side channel waveguides branching from the incident-side channel waveguide; and

    a control electrode which is formed on the optical waveguide layer, the control electrode forming, near a crossover portion of the plurality of outgoing-side channel waveguides, a reflection plane which reflects the incident light signal by applying with the substrate a voltage to the optical waveguide layer to control the refractive index of the optical waveguide layer, and the control electrode switching propagation paths of the light signal.

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